A popular wedding spot, the arboretum grounds are open daily from dawn till dusk, free of charge.

The property was originally traversed by Lenni Lenape Native Americans on their route from the coast near Elizabeth to the highlands near Schooley's Mountain.

John and Isabelle Wisner, whose three children had been born in China,[2] hired New York architects Babb, Cook and Willard to build a Colonial Revival house, sited facing south with extensive views over the rolling hills.

Working with noted landscape architect Calvert Vaux, they planted specimen trees and created flower beds and a meandering path around the property.

Other events at the garden have included a Maple Sugar Fest, Great American Backyard Campout, Holiday House Tour, and Sounds of a Summer Night.

Adults visit for sessions such as Gardening 101 and Backyard Bird Feeding tips, as well as related special collaborations with arts organizations.